alert(2)
window.onload = function() {
    alert(1)
    document.querySelector("#popup").style.marginTop = '-14px';
};

const input = document.getElementById('s_url');
let originalValue = input.value;

input.addEventListener('click', () => {
    input.value = '';
});

input.addEventListener('blur', () => {
    if (input.value === '') {
        input.value = originalValue;
    }
});